Office Space meets Battle Royale as an office block is turned into a bloody arena when the staff are pitted against each other in a vicious kill or be killed game, in this top-notch horror thriller from director Greg McLean (Wolf Creek) and writer James Gunn (Guardians of the Galaxy).

Watch a violent claymation clip created by the talented British animator Lee Hardcastle at the link above. In UK cinemas 21st April 2017.